blam: Add WebGL software-render test harness files #492

Job	Run time
Create release	4s
macOS host tools	2m 53s
Linux host tools	1m 31s
beaglebone:arm-buildroot-linux-gnueabihf:ti-sgx:rel	41m 35s
desktop:x86_64-w64-mingw32:posix:rel	28m 42s
android:arm64:30-gl:rel	37m 17s
desktop:aarch64-buildroot-linux-gnu:multi:rel	42m 40s
desktop:x86_64-buildroot-linux-gnu:multi:rel	49m 3s
web:wasm64-emscripten:webgl2:rel	12m 38s
web:wasm32-emscripten:webgl2:rel	13m 20s
android:arm-neon:24:rel	16m 26s
desktop:arm-buildroot-linux-gnueabihf:sdl2:rel	42m 11s
android:arm-neon:19:rel	14m 18s
android:arm64:32:rel	37m 49s
web:wasm32-emscripten:webgl2-custom:rel	13m 17s
desktop:x86_64-darwin:macos:rel	26m 15s
desktop:universal-darwin:macos:dbg	24m 37s
ios:x86_64-darwin:simulator:dbg	24m 6s
Software render test (SwiftShader, WebGL2)	35s
Software render test (MESA, core_45)	8m 4s
Software render test (MESA, core_33)	6m 52s
Software render test (MESA, es_32)	6m 30s
Software render test (MESA, core_43)	8m 9s
Software render test (MESA, es_20)	5m 45s
Software render test (MESA, es_30)	7m 46s
Deploy	0s
Gather test results	9s
	7h 52m 32s

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